Note 4 - Lease Obligations and Other Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

Note 4 — Lease Obligations and Other Contingencies

The Company has the following minimum payments under operating lease obligations that existed at December 31, 2014:

2015	$	739
2016		383
2017		384
2018		356
2019		366
Thereafter		186
Total minimum payments	$	2,414

The obligations in the preceding table are primarily related to the Company’s leases for buildings in Birmingham, Alabama and Durham, North Carolina. The lease for the Company’s headquarters in Durham, North Carolina expires June 30, 2020. The lease for the existing facility in Alabama expires June 30, 2016; however, in October 2015, the Company will lease an additional approximate 35 square feet in Birmingham to house its new research facilities. The Company expects to begin construction on its new research facility in 2015 and this lease obligates the Company for $5,148 through 2026. Rent expense for operating leases was $633, $526, and $629 in 2014, 2013, and 2012, respectively.