Note 6 - Commitments and Contingencies (Details)		3 Months Ended			6 Months Ended
	Apr. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2012	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2015
Note 6 - Commitments and Contingencies (Details) [Line Items]
Operating Leases, Rent Expense		$ 507,000	$ 546,000		$ 1,100,000	$ 1,100,000
Number of Capital Leases				2
F. Stephen Allen [Member]
Note 6 - Commitments and Contingencies (Details) [Line Items]
Loss Contingency, Damages Sought, Value	$ 4,000,000
Dell Financial Services [Member]
Note 6 - Commitments and Contingencies (Details) [Line Items]
Number of Capital Leases				1
HP Financial Services [Member]
Note 6 - Commitments and Contingencies (Details) [Line Items]
Number of Capital Leases				1
Minimum [Member] | Capital Lease Obligations [Member]
Note 6 - Commitments and Contingencies (Details) [Line Items]
Debt Instrument, Interest Rate, Effective Percentage							4.50%
Maximum [Member] | Capital Lease Obligations [Member]
Note 6 - Commitments and Contingencies (Details) [Line Items]
Debt Instrument, Interest Rate, Effective Percentage							8.00%