Financing Activities (Details Narrative) (USD $)	1 Months Ended		9 Months Ended
	Mar. 31, 2011	Feb. 28, 2011	Jun. 30, 2012	Sep. 30, 2011	Jul. 14, 2011	Jun. 30, 2011	Oct. 27, 2010	Sep. 30, 2010	May 07, 2010
Financing Activities Details Narrative
Demand Loan			$ 750,000	$ 750,000		$ 750,000
Promissory note									1,050,000
Promissory note, interest rate			4.50%						6.25%
Promissory note, equity contribution									350,000
Stock options exercised, shares			42,000						24,000
Stock options exercised, price per share									$ 15.00
Stock options exercised, total amount									360,000
Covenants measured at each fiscal year end			The agreement included the following covenants to be measured at each fiscal year end starting with the September 30, 2009 financial statement:(i) Maintain a tangible net worth of not less than $11.0 million,(ii)Maintain a debt to tangible net worth ratio of less than 3.0 to 1.0, and(iii)Maintain a debt service coverage ratio of 1.10 to 1.
Interest rate on promissory note	Interest rate on the loan was modified from a fixed interest rate to a floating rate of 30-day LIBOR plus 2.75%
Interest rate on promissory note, floor	4.50%
Interest rate on promissory note	6.25%
Agreement to fund construction of an upgrade to existing natural gas pipiing, value								750,000
Agreement to fund construction of an upgrade to existing natural gas pipiing, interest								4.25%
Multiple disbursement term note, amount					2,000,000		1,865,000
Multiple disbursement term note, interest rate							5.76%
Multiple disbursement term note interest rate information			Until October 31, 2011, the note was payable as interest only at a rate of the greater of 3.50% above 30-day LIBOR or 4.25%. On November 1, 2011 the note converted to a permanent loan payable monthly for five years calculated on a ten-year amortization schedule with a variable rate, adjusting daily, based on the greater of 3.25% above 30-day LIBOR or 4.25%. The interest rate was 4.25% as of June 30, 2011.
Revolving line of credit, amount		$ 7,000,000
Revolving line of credit, interest rate		The line of credit had a fluctuating interest rate equal to the greater of 3.5% or the 30-day LIBOR plus 2.25% and expired on February 28, 2012. In February 2012, we refinanced the line of credit with Community Bank and the new line of credit bears interest at the greater of 3.25% or the 30-day LIBOR plus 2.25%. The interest rate on this loan is adjusted monthly and was 3.25% at June 30, 2012.