|12 Months Ended|
Dec. 31, 2017
|Leases, Operating [Abstract]|
|Leases of Lessee Disclosure [Text Block]||
The Company leases two corporate offices and one commercial manufacturing facility through operating lease agreements. The Company has obligations through 2023 for both corporate offices, one located in Eden Prairie, Minnesota, and one located in Yardley, Pennsylvania. The Company also has an obligation for its commercial manufacturing facility located in Langhorne, Pennsylvania, through 2026. During the year ended December 31, 2016, the landlord of the office in Yardley, Pennsylvania, made certain improvements to the facility. The Company recorded a deferred lease incentive liability of $267,000 for the improvements funded by the landlord in accrued and other long-term liabilities on the consolidated balance sheet and amortizes the deferred liability as a reduction to rent expense on the consolidated statement of operations over the term of the lease. Tenant improvements are also included in leasehold improvements on the balance sheet.
Future minimum lease payments, excluding expense reimbursements, under noncancelable operating leases at December 31, 2017 are as follows (in thousands):
Total rent expense was $570,000 and $542,000 for the years ended December 31, 2017 and 2016, respectively.
The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing.
Reference 1: http://www.xbrl.org/2003/role/presentationRef