Note 3 - Notes Payable (Detail) (USD $)	3 Months Ended	6 Months Ended		6 Months Ended		6 Months Ended
	Mar. 31, 2012	Jun. 30, 2012	Dec. 19, 2008	Jun. 30, 2012 Term Loan MIV Acquisition [Member]	Jul. 31, 2010 Term Loan MIV Acquisition [Member]	Jun. 30, 2012 Term Loan OCS Acquisition [Member]
Debt Instrument, Face Amount			$ 9,000,000		$ 6,900,000	$ 10,000,000
Debt Instrument, Periodic Payment				80,104		121,190
Debt Instrument Balloon Payment Amount				4,800,000		6,700,000
Debt Instrument, Interest Rate, Stated Percentage				3.79%		3.79%
Notes Payable				5,600,000		8,000,000
Line of Credit Facility, Maximum Borrowing Capacity		6,500,000
Line of Credit Facility, Borrowing Capacity, Description		75%
Line of Credit Facility, Interest Rate Description	Borrowings under the revolving credit note bear interest at a variable annual rate, with three rate options at the discretion of management as follows:(1) 2.5% plus the daily reset one-month London Interbank Offered Rate ("LIBOR") or (2) 2.2% plus the one-, two-, three-, six- or twelve-month LIBOR rate, or (3) the bank's Money Market Loan Rate.
Line of Credit Facility, Remaining Borrowing Capacity		$ 6,500,000