Condensed Consolidated Balance Sheet (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 5,641	$ 583
Treasury bills	0	5,197
Available for sale securities	2,344	2,830
Trade receivables, less allowance for doubtful accounts of $9	793	577
Inventories	1,204	1,057
Income tax receivable	0	54
Other current assets	98	81
Total current assets	10,080	10,379
Property and equipment, net	1,181	1,174
Total assets	11,261	11,553
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	166	75
Accrued expenses	361	195
Deferred revenue	0	70
Accrued income tax	40	0
Total current liabilities	567	340
Deferred income tax liability	917	1,078
Commitments and contingencies
Stockholders' equity
Common stock par value $0.10 per share; authorized 10,000,000 shares; issued and outstanding: 3,389,577 and 3,381,999 shares, respectively	339	338
Additional paid-in capital	1,561	1,541
Retained earnings	6,487	6,565
Accumulated other comprehensive income (unrealized gain on available for sale securities, net of income tax)	1,390	1,691
Total stockholders' equity	9,777	10,135
Total liabilities and stockholders' equity	$ 11,261	$ 11,553