Intangible Assets (Accumulated Amortization and Expense) (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 229,141	$ 198,430
Amortization expense	31,000	33,000
Amortization expense, 2013	14,000
Amortization expense, 2014	2,000
Amortization expense, 2015	2,000
Amortization expense, 2016	2,000
Amortization expense, 2017	2,000
Covenant Not to Compete and Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	930,423	652,757
Amortization expense	277,666	241,000
Amortization expense, 2013	278,000
Amortization expense, 2014	253,000
Amortization expense, 2015	0
Amortization expense, 2016	0
Amortization expense, 2017	$ 0
Minimum [Member] | Covenant Not to Compete and Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	5 years
Maximum [Member] | Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	17 years
Maximum [Member] | Covenant Not to Compete and Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated useful life	10 years