Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Identifiable assets:
Cash and cash equivalents	$ 24,951	$ 25,710
Trade accounts receivable, net of allowance for doubtful accounts of $146 and $146, respectively	5,336	4,395
Inventories	3,454	3,520
Prepaid expenses and other current assets	611	639
Total current assets	34,352	34,264
Property and equipment:
Machinery and equipment	4,350	4,377
Leasehold improvements	603	603
Gross property and equipment	4,953	4,980
Less: accumulated depreciation	(3,938)	(3,868)
Net property and equipment	1,015	1,112
Deferred tax assets	1,220	1,245
Goodwill	1,706	1,706
Intangible assets, net	1,045	1,104
Restricted certificates of deposit	350	350
Other assets	218	203
Total assets	39,906	39,984
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	1,365	909
Accrued wages and benefits	1,179	1,466
Accrued rent	606	657
Accrued professional fees	364	363
Accrued sales commissions	316	297
Other current liabilities	394	367
Total current liabilities	$ 4,224	$ 4,059
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value; 20,000,000 shares authorized; 10,498,635 and 10,549,423 shares issued, respectively	$ 105	$ 105
Addtional paid-in capital	25,854	26,286
Retained earnings	9,094	9,013
Accumulated other comprehensive earnings	833	725
Treasury stock, at cost; 33,077 and 33,077 shares, respectively	(204)	(204)
Total stockholders' equity	35,682	35,925
Total liabilities and stockholders' equity	$ 39,906	$ 39,984