Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Allowance for doubtful accounts (in Dollars)	$ 98,000	$ 91,000
Accumulated depreciation and amortization (in Dollars)	$ 6,725,000	$ 7,704,000
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,712,948	9,712,948
Common stock, shares outstanding	9,712,948	9,712,948